webpacker:install leads to a bin/yarn conflict

[rubys]

Steps to reproduce

rails new wpinstall
cd wpinstall/
echo "gem 'webpacker', github: 'rails/webpacker'" >> Gemfile
bundle install
rails webpacker:install

Expected behavior

On a clean repository, this should complete without conflict.

Actual behavior

conflict  bin/yarn
Overwrite /home/rubys/git/awdwr/edition4/work-51/depot/bin/yarn? (enter "h" for help) [Ynaqdh] Y
       force  bin/yarn

System configuration

Rails version: 5.1.0.rc2

Ruby version: 2.4.0

[ytbryan]

Background: #277 changes the bin/yarn on webpacker.

Yup @y-yagi fixed the bin/yarn on rails.

This can be closed. Thanks for reporting, rubys

[matthewd]

webpacker should be more explicit about only creating that file if it doesn't exist, so it's only supplying it for pre-5.1 Rails apps. Otherwise we're going to have ongoing cross-version compatibility issues trying to keep them in sync.

[gauravtiwari]

Fixed by #285